At a young age, Yo-Yo Ma discovered a remarkable gift for the cello, playing Bach from memory by age four. His technique was far beyond his years, but even as he grew and became a world-class musician--studying at Juilliard, performing at Carnegie Hall at a young age, even playing on television before the president of the United States--he wanted to use his gift for something deeper, something bigger. As he asked question after question, trying to understand his place in the world, he discovered something that every culture has in common: music.